AR043503A1 - COMPOSITIONS OF ABSORBENT POLYMERS, MEDICAL ARTICLES AND METHODS - Google Patents

COMPOSITIONS OF ABSORBENT POLYMERS, MEDICAL ARTICLES AND METHODS

Info

Publication number
AR043503A1
AR043503A1 ARP040100726A ARP040100726A AR043503A1 AR 043503 A1 AR043503 A1 AR 043503A1 AR P040100726 A ARP040100726 A AR P040100726A AR P040100726 A ARP040100726 A AR P040100726A AR 043503 A1 AR043503 A1 AR 043503A1
Authority
AR
Argentina
Prior art keywords
microspheres
absorbent
polymeric material
compositions
methods
Prior art date
Application number
ARP040100726A
Other languages
Spanish (es)
Inventor
Robert Harold Menzies
Patrick Darby Hyde
Original Assignee
3M Innovative Properties Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of AR043503A1 publication Critical patent/AR043503A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/425—Porous materials, e.g. foams or sponges
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/225—Mixtures of macromolecular compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • Public Health (AREA)
  • Dispersion Chemistry (AREA)
  • Materials For Medical Uses (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Una composición de polímero absorbente que puede estar en forma de espuma y que incluye un material polimérico, partículas absorbentes y microesferas térmicamente expansibles (o expandidas). Reivindicación 18: Una composición en espuma de polímero absorbente que comprende: un material polimérico; un hidrocoloide que comprende partículas superabsorbentes; y microesferas térmicamente expandidas; caracterizada porque la espuma de polímero tiene una densidad de menos de 0,8 gramo por centímetro cúbico. Reivindicación 24: Un método para producir una composición en espuma de polímero absorbente caracterizado porque el método comprende: la combinación de un material polimérico, partículas absorbentes y microesferas térmicamente expansibles para formar una mezcla en una extrusor a una temperatura inferior a la temperatura de expansión de las microesferas; y el aumento de la temperatura de la mezcla sobre la temperatura de expansión de las microesferas térmicamente expansibles durante la extrusión.An absorbent polymer composition that may be in foam form and that includes a polymeric material, absorbent particles and thermally expandable (or expanded) microspheres. Claim 18: An absorbent polymer foam composition comprising: a polymeric material; a hydrocolloid comprising superabsorbent particles; and thermally expanded microspheres; characterized in that the polymer foam has a density of less than 0.8 gram per cubic centimeter. Claim 24: A method for producing an absorbent polymer foam composition characterized in that the method comprises: the combination of a polymeric material, absorbent particles and thermally expandable microspheres to form a mixture in an extruder at a temperature below the expansion temperature of the microspheres; and increasing the temperature of the mixture over the expansion temperature of the thermally expandable microspheres during extrusion.

ARP040100726A 2003-03-12 2004-03-08 COMPOSITIONS OF ABSORBENT POLYMERS, MEDICAL ARTICLES AND METHODS AR043503A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/387,236 US7285576B2 (en) 2003-03-12 2003-03-12 Absorbent polymer compositions, medical articles, and methods

Publications (1)

Publication Number Publication Date
AR043503A1 true AR043503A1 (en) 2005-08-03

Family

ID=32987329

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP040100726A AR043503A1 (en) 2003-03-12 2004-03-08 COMPOSITIONS OF ABSORBENT POLYMERS, MEDICAL ARTICLES AND METHODS

Country Status (16)

Country Link
US (1) US7285576B2 (en)
EP (2) EP1721623B1 (en)
JP (1) JP2006523260A (en)
CN (1) CN1774271A (en)
AR (1) AR043503A1 (en)
AT (2) ATE463264T1 (en)
AU (1) AU2004220628B2 (en)
BR (1) BRPI0408206B1 (en)
CA (1) CA2518554A1 (en)
DE (2) DE602004026485D1 (en)
DK (1) DK1721623T3 (en)
ES (2) ES2342967T3 (en)
MX (1) MXPA05009557A (en)
TW (1) TW200503791A (en)
WO (1) WO2004080498A1 (en)
ZA (1) ZA200508207B (en)

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ATE332713T1 (en) 2006-08-15
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EP1721623A3 (en) 2008-07-09
BRPI0408206A (en) 2006-02-14
ATE463264T1 (en) 2010-04-15
DE602004001515D1 (en) 2006-08-24
CA2518554A1 (en) 2004-09-23
MXPA05009557A (en) 2006-03-17
EP1721623B1 (en) 2010-04-07
EP1601386B1 (en) 2006-07-12
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US7285576B2 (en) 2007-10-23
US20060173087A1 (en) 2006-08-03
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EP1601386A1 (en) 2005-12-07
ZA200508207B (en) 2007-02-28
DK1721623T3 (en) 2010-07-12
JP2006523260A (en) 2006-10-12
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ES2342967T3 (en) 2010-07-20
TW200503791A (en) 2005-02-01

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